CN101305032B - Starch-based filler and coating pigment composition for fibre webs and method for the manufacture thereof - Google Patents
Starch-based filler and coating pigment composition for fibre webs and method for the manufacture thereof Download PDFInfo
- Publication number
- CN101305032B CN101305032B CN2006800380983A CN200680038098A CN101305032B CN 101305032 B CN101305032 B CN 101305032B CN 2006800380983 A CN2006800380983 A CN 2006800380983A CN 200680038098 A CN200680038098 A CN 200680038098A CN 101305032 B CN101305032 B CN 101305032B
- Authority
- CN
- China
- Prior art keywords
- starch
- pigment
- organic polymer
- refining
- raw material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
- B41M5/52—Macromolecular coatings
- B41M5/5236—Macromolecular coatings characterised by the use of natural gums, of proteins, e.g. gelatins, or of macromolecular carbohydrates, e.g. cellulose
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/12—Powdering or granulating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
- C08L3/04—Starch derivatives, e.g. crosslinked derivatives
- C08L3/06—Esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/41—Organic pigments; Organic dyes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
- D21H19/38—Coatings with pigments characterised by the pigments
- D21H19/42—Coatings with pigments characterised by the pigments at least partly organic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2303/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
- C08J2303/04—Starch derivatives
- C08J2303/06—Esters
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Paper (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
A material which is suitable as filler or coating pigment for a fibrous web and a method for manufacturing thereof. According to the method, a feed comprising organic polymer material is cooled to at least approximately -50 DEG C, after which it is refined in a jet refiner to a desired particle size. The present invention generates uniform pigment particles which comprise, for instance, starch esters, and which particles have a porous surface structure, in which case they are suitable for instance as coating pigments and fillers for offset and ink-jet papers.
Description
According to the preamble of claim 1, the present invention relates to prepare the method for starch-based filler and coating pigment composition.
In this kind method, utilize suitable process for purification that starch-based initial material or corresponding organic polymer are refined to required particle size mutually dried.
The invention still further relates to the weighting agent and the coating pigment composition of claim 10.
In the preparation of paper, use brightness and the opaqueness of different pigment usually to improve paper.Generally speaking, these pigment are inorganic, and its density is about 2.1-5.6kg/dm simultaneously
3Yet, also use density to be respectively pigment dyestuffs such as 1.1 and 1.05 urea-Superlysoform resin pigment and polystyrene pigment for a long time.Yet there is some problem in these pigment dyestuffs.Therefore, polystyrene pigment is not able to take the heat of paper mill drying zone and does not melt, and UF pigment is prone to decompose and emit Superlysoform simultaneously.
When pigment is used as papermaking filler, when getting on to dewater, pigment is remained on the fibrous reticulum from paper, promptly pigment keeps, and is exactly a challenge usually.Greatest differences between density has reduced reservation, must offset through adding several kinds of auxiliary agents.Therefore, close (the promptly about 1000kg/m of density of general preferred its density of papermaking and paper-making fibre or water
3) pigment.
For many years, done trial aspect the pigment of high optical scattering coefficient and high brightness obtaining having.In addition, the use of ink-jet printer has given said pigment brand-new effect.In these equipment, picture or text are that the ink droplet that several skins rise produces by volume.At this moment, thus very advantageously be that solvent in pigment or the fiber absorbs tinting material can not scatter the tinting material in the ink droplet along with the carrying out of diffusion.This is specially adapted to have pigment coated paper.
We have described the method that is prepared porous particle by starch-based initial material at previous application (FI patented claim 20040741).In the method; Utilize two-step approach to prepare said particle; Wherein at first starch-based initial material is dissolved in the mixture of organic solvent or organic solvent and non-solvent (for example water), then starch fraction is precipitated out from said mixture through dilute said solution with non-solvent.
This method obtains being essentially the porous particle of circle.These particles are suitable for as the weighting agent and the pigment that for example are used for paper.Said verivate is thermoplasticity (T
gBe generally about 150-160 ℃), this is favourable, because said particle experiences plastotype in calender line, thereby makes paper become smooth.When comparing with native starch, esterification (for example acetylize) improves the thermostability of product.This point is especially favourable when said product at high temperature is used as pigment.
The object of the invention is to provide the another kind of solution of preparation porous-starch derivative particles.
The present invention is based on following idea: the cooling solid starch-based initial material is refined to required fineness then in spraying refiner.This method obtain particle size dispersion narrow with have the particle of porous surface structure, said particle has extraordinary optical property simultaneously.These particles can be used for coating and paper fillers.If desired, can make with extra care organic granular and inorganic particle simultaneously.
The result; The present invention has obtained being used to be coated with and fill the fibroreticulate pigment that comprises paper or cardboard; Said pigment includes organic polymer; This organic polymer surface tissue is porous, and said porousness is through obtaining at the refining said product of cryogenic spray, and is particularly reinforced-50 to-195 ℃ of temperature.
More specifically, the characteristic of the inventive method mainly is the said content of claim 1 characteristic.
And product of the present invention is characterised in that the said content of claim 10 characteristic.
The present invention can obtain remarkable advantages.Solution of the present invention also is applicable to the raw material that is insoluble to the organic solvent that is prone to vaporization.Therefore; Can with starch polymer (ethanoyl for example, DS=1) as raw material, its verivate high than substitution value obviously is easy to get; It is inappropriate for the raw material (dissolution/precipitation method) as pigment in the prior art simultaneously, because its almost completely water insoluble and organic solvent.
According to another embodiment preferred of the present invention, the preparation substitution value is the starch acetate of 1-3, and utilize to spray and refining it to be refined to the particle size of the about 100 μ m of about 1-.Though prepared said product through deposition at first, when using perishing raw material to spray when refining, the present invention has observed beyond thought favourable variation.
The continuity that can be used as starch derivative (for example starch acetate) preparation method is made with extra care.
In an application of the present invention, can be paste composition to be prepared and select required starch acetate/mineral color ratio, for example calcium carbonate/starch acetate ratio.Following true example the usage range of said method: the inorganic component in the starch material treating process can be water-soluble salt, for example sodium acetate.
Be noted that starch processing company and paper industry are all very interested in pigment dyestuff especially starch-based pigment, because it has combustibility, light weight and has good technical performance.
Hereinafter will be investigated the present invention under the help of attach pictures and illustrated in detail in more detail.
Fig. 1 shows substruction from the front of the equipment that is used for the present invention and uses,
Fig. 2 shows the SEM figure of starch acetate, said starch acetate utilized the aeropulverizer of cooled with liquid nitrogen made with extra care and
Fig. 3 shows the SEM figure of starch acetate, and said starch acetate has utilized does not have the refrigerative aeropulverizer to make with extra care.
According to the present invention, behind the possible pre-refining, the solid starch based raw material is refined to required particle size through spraying to make with extra care.General using pressurized air accelerates to raw material at a high speed, and it is ordered about becomes solid walls, i.e. the wall of rotation, the perhaps similar pigment spraying of guiding in the opposite direction in the opposite direction.This injection method for refining obtains the mean particle size of the about 100 μ m of about 1-.
Prerequisite of for example aforesaid purified is that said raw material is a solid, and promptly temperature is lower than glass transition temperature (T at least
g).The present invention has found that extraction temperature is low more, and the organic polymer raw material that the present invention handles is crisp more.Said making with extra care will obtain brand-new pigment, and said pigment is applicable to preparation paper (and cardboard and similar fibrous reticulum).Generally speaking, the density of pigment is about 1.5, and mean particle size is 14-40 μ m.Said particulate particle size dispersion is narrow, this means that the diameter maximum of 75% in all particles is about the twice of all average diameter of particles.
Charging not moisture or not moisture basically (only be water cut/moisture content less than 2% weight, be in particular less than 1% weight).
Fig. 1 shows a kind of application form that is used for equipment of the present invention.Charging (for example starch derivative) adds in the refrigerative charging tank 2 through vibrating feeder 1.Charging tank 2 links to each other with the device 3 that is used to cool off reinforced air.According to the present invention, cooling is fed to low temperature, promptly to subambient temperature.Only is in whole treating process, to make pending raw material keep low temperature.Charging for example is cooled at least-50 ℃, and only is to be cooled at least-100 ℃, especially is cooled at least-120 ℃, preferably is cooled at least-150 ℃, and is refining in spraying refiner 4 subsequently.According to an application, cooling is fed to liquid nitrogen temperature (-190 to-195 ℃ approximately) basically.
Only is that cooling is used to spray purified processed gas (for example air or nitrogen) separately.Only is to cool off said gas to the temperature corresponding to feeding temperature or coolant temperature.
In an embodiment of the present invention, liquid nitrogen (temperature is-190 ℃ approximately) is used the compressed-air actuated refrigerant that acts on cooling raw material and injection.Certainly, also can other refrigerants (for example dry ice) be used for cooling.Compressed-air actuated pressure is generally about 1.5-10 crust.
Input speed can change, and depends on raw material and device, but generally can be about 10-10,000g/ minute, is in particular about 50-1000g/ minute.
Because low temperature when in aeropulverizer, making with extra care, obtains making with extra care littler particle size in room temperature.The SEM photo shows that starch granules has meticulous structure (pit, hole or small-particle), and this helps scattering of light, and simultaneously the size of said structure is significantly less than 1000nm, and this ISO brightness of having explained paper coating from himself angle is higher reason obviously.Originally, the button brightness of raw material (button brightness) is 85, is 87.8 after making with extra care.
When at the low-temperature purifying method starch acetate, its fine structure/porousness has obtained maintenance, and according to the SEM picture, and fine structure/porousness even look is improved, when situation just not can be like this during refining said product under the refrigerative situation not.
To be suitable for the low temperature aeropulverizer refining though the invention describes starch acetate, can this method be used for any other (organic) polymkeric substance that refining its physical properties satisfies the required standard of pigment raw material in theory.Particularly refining polysaccharide-based polymer is for example based on Mierocrystalline cellulose, starch or chitinous polymkeric substance.The example is Mierocrystalline cellulose and chitinous ester (for example Vladipor UAM 500) and starch derivative, the preferred especially latter.
Correspondingly, the starch-based component as raw material of the present invention for example can be " functional " starch derivative.This is meant that this product is made through chemical reaction by starch, simultaneously its at least the partly dehydrating glucose unit comprise the group of modifying hydroxy functional group.Generally speaking, starch derivative is the starch ester by native starch, hydrolyzed starch, Sumstar 190, cross-linking starch or jelling starch preparation.Starch ethers constitutes another proper raw material group.Said verivate also can be starch ester/ether, perhaps the mixture of two or more starch derivative.
Starch again can be based on any native starch, and its amylose content is 0-100%, and amylopection content is 100-0%.Correspondingly, starch can derive from barley, potato, wheat, oat, pea, corn, cassava, sago and rice, perhaps similar stem tuber vegetables and cereal crop.
It is suitable having found to use the starch-based component that derives from ester, and ester is by starch and one or more aliphatic C
2-24Carboxylic acid forms.In this case, the carboxyl acid component of this type of ester can be derived from the lower alkanols alkanoic acid, for example acetic acid, propionic acid, butyric acid or its mixture.According to an embodiment preferred, starch fraction is an esterification starch, and only is to be starch acetate, and its substitution value is 0.5-3, is preferably 1.5-3, and only is to be 2-3.Substitution value to starch ester is selected, and makes said product be insoluble to the precipitation agent that is used for said method basically.
As long as the glass transition point of starch ester is as far as the enough height of required application, then carboxyl acid component also can derive from natural saturated or unsaturated fatty acids in principle.The example is palmitinic acid, Triple Pressed Stearic Acid, oleic acid, linolic acid (linolic acid) and composition thereof.Said ester also can comprise long-chain and short chain carboxy acid's component simultaneously.The example is the mixed ester of acetic ester and stearate.Outside the deacidification, corresponding acid anhydrides, acyl chlorides and other corresponding active acid derivants also can be used to form ester through known method itself.
As the fatty ester of the said preparation starch of for example following trade journal: Wolff, I.A., Olds; D.W. and Hilbert, G.E., the acidylate of W-Gum, amylose starch and pulullan (Theacylation of Corn Starch; Amylose and Amylopectin); J.Amer.Chem.Soc.73 (1952) 346-349 or Gros, A.T. and Feuge, R.O.; The character of amylose starch fatty ester (Properties of Fatty Acid Esters of Amylose), J.Amer.OilChemists ' Soc 39 (1962) 19-24.
Lower member ester verivate (for example starch acetate) can be through the preparation of following method: under catalyzer, make starch and react corresponding to the acid anhydrides (for example diacetyl oxide) of ester group.For example, with 50% sodium hydroxide as catalyzer.In addition, other currently known methodss of the preparation acetic ester of industry document description are suitable for preparing starch acetate.Through the amount that changes diacetyl oxide, amount and the reaction times that is used as the alkali of catalyzer, can prepare the different starch acetate of substitution value.The method of for example FI patent 107386 capable of using or US patent 5.667.803 or utilization are usually used in the acetylizad prepared by other starch acetate of starch.
Can preferably change the character that the glycosyl product changes starch ester through forming it.
According to another embodiment preferred, starch fraction is the ester of the starch of hydroxy alkylated.In this case, more preferably hydroxypropylated starch ester, its molar substitution is 2 to the maximum, preferably is 1 to the maximum, 0.1-0.8 more preferably, substitution value is at least 1, only is at least 2, preferred 2.5-3.
The organic polymer that the present invention selects, starch polymer for example, its second-order transition temperature are at least+60 ℃, and only is to be at least 80 ℃, is preferably at least 100 ℃, especially is about 150-165 ℃ or higher.The second-order transition temperature (except of short duration surpassing) that the temperature that one of the initial standard that is used to select vitrifying point prepares process for the preparation of pigment or weighting agent and working temperature or final product all is no more than said product loses its favourable scattering of light optical property to prevent pigment or weighting agent.
Polymer chain comprises at least 10 glucose units and at least 1 ethanoyl of every glucose unit.According to an embodiment preferred, polymer chain comprises 100-150 glucose unit and every glucose unit 2-3 ethanoyl.According to another embodiment, the starch body decomposes, and makes it spontaneously from solution separating, becomes spheroidal particle.But the MWD broad of starch polymer.According to an embodiment preferred, the heterogeneity index of starch polymer is 1.5-2.0.
So-called slurry process also can be used for preparing the verivate of substitution value lower (DS≤1), and the natural particle size of starch granules is able to keep in the slurry process, because starch can gelling in the preparation process.Can be with the continuity made from extra care as the preparation method.Also correctability acetic ester (hydroxy alkylated, change glycosylation, hydrolysis, crosslinked).
According to an embodiment preferred; The aeropulverizer of the method that the present invention uses through the use cooled with liquid nitrogen be refined to starch acetate (preferably its substitution value is 1＜DS≤3) and be preferably＜particle size (90% product) of 5 μ m; In this case, said material likewise is suitable for as improving the brightness of paper and the weighting agent and the pigment of opacity.
When substitution value was 1＜DS≤3, starch acetate was thermoplasticity, water insoluble and biodegradable polymkeric substance, depends on molecular weight and starch quality, and the second-order transition temperature of this polymkeric substance is 155-165 ℃.
According to the SEM picture, when substitution value was higher, starch acetate was porous materials slightly, depends on the employed method of dry said product, and this material specific surface area is 4.8-10.5m
2/ g.
Can simultaneously mineral grain and starch fraction (or similar organic constituent) (required for being coated with or filling paper) be refined to required particle size.In this application, water-free starch acetate particles (initial average out to 90 μ m) and concrete hardness (specific hardness) and bigger mineral grain or the collision of salt crystal of density, thus these collisions each other cause its size to diminish.Based on the physicochemical property (glass transition point is+160 ℃, and specific refractory power is 1.47) of starch polymer, but the said raw material of legitimate inference has improved the optical property of coating or filling paper in calender line.
Can change the ratio of organic polymer particles and mineral grain arbitrarily.Generally speaking, the amount of organic granular is at least 5% weight of total particle quantity, and only is about 10-95% weight.In an embodiment, the mineral color that uses occupies machine pigment and is 0-80% weight.
The instance of mineral grain is lime carbonate, gypsum, pure aluminium silicate, kaolin, white lake, Magnesium Silicate q-agent, talcum, titanium oxide, permanent white, zinc oxide and composition thereof.
The product that utilizes this method to prepare reaches the pigment that has vesicular structure accordingly and can be used as pigment and the weighting agent that for example is used for offset paper and ink jetting paper.
The embodiment of following indefiniteness has set forth the present invention:
Embodiment 1
Be used to test the purified different methods of starch acetate (DS 2.8)
The purified test that is used to detect starch acetate utilizes ball mill, aeropulverizer and liquid nitrogen aeropulverizer to carry out.It is refining to utilize device shown in Figure 1 to carry out fluid jet, and the refining preceding cooling required time of raw material (charging) is 15 minutes, and the amount of charging is 200-500g in the test.Input speed depends on said raw material, but the about 50g/ of average out to minute.
Table 1 shows the particle size of refining gained
The particle size of the refined starch acetate of table 1 (device: Coulter LS-130)
| Through (%) | Feed particles size μ m | Ball mill particle size μ m | Aeropulverizer particle size μ m | Liquid nitrogen aeropulverizer particle size μ m |
| 10 | 3.3 | 1.4 | 2.2 | 1.5 |
| 25 | 8.5 | 2.2 | 3.6 | 2.1 |
| 50 | 57.6 | 3.8 | 6.0 | 3.0 |
| 75 | 292 | 6.9 | 9.0 | 4.2 |
| 90 | 451 | 12.1 | 11.5 | 5.5 |
The result of table 1 shows that the mean particle size and the largest particle size of the product that liquid nitrogen aeropulverizer (its structure is as shown in Figure 1) makes than additive method is obviously littler.Based on SEM picture (Fig. 2 and 3), starch granules inside and surface thereof obviously exist microvoid structure, and when comparing with original state, this structure seems in the aeropulverizer treating process of cooled with liquid nitrogen have been increased.In the refining microstructure (SEM) of more being sealed of room temperature.
Record with the ISO brightness of the refined starch acetate of aeropulverizer of cooled with liquid nitrogen and count 87.8 with button brightness, accordingly, the brightness of employed raw material is 85.
Said product also is used to be coated with paper.Recording coating wt is 14g/m
2The brightness of coating paper be 82, opacity is 98.The analog value of paper of being untreated is 62 and 95.Than spherical starch acetate pigment or the porous pigment of the 200-400nm that utilizes the dissolving precipitated method preparation among the patented claim FI 20035173, when the coating paper, obtained the brightness and the opacity of identical size with corresponding coating wt.
Purified starch acetic ester in the presence of calcite
Table 2 shows purified starch acetic ester (80%) and the slightly particle size dispersion of calcite (SIF concentration, 20%) products therefrom simultaneously under embodiment 1 corresponding conditions.Based on particle size dispersion, calcite is still coarse than starch slightly.Yet, consider that calcite is not to be suitable for very much in aeropulverizer, making with extra care, so this result is likely.
Table 2 utilizes the aeropulverizer while purified starch acetic ester (DS 2.8) and the thick calcite (250-500 μ m) of cooled with liquid nitrogen, utilizes Coulter LS-130 to measure particle size dispersion.
| Through (%) | Refined product particle size μ m |
| 10 | 1.9 |
| 25 | 3.0 |
| 50 | 5.2 |
| 75 | 9.2 |
| 90 | 20.3 |
Said product can be used as the pigment that for example is used for paper application, as long as with organic starch based product instead of part mineral color.The thermoplastification of calendering stage starch acetate has especially improved the gloss of coating paper.
Making with extra care of low degree of substitution starch acetate
Table 3 shows the result of the starch acetate of the refining substitution value lower (DS 1) of aeropulverizer method for refining that utilizes cooled with liquid nitrogen with particle size.Said result shows that mean particle size has been reduced to 19 μ m from 90 μ m, and this shows that said process for purification also is applicable to lower substitution value.
Table 3 utilizes the aeropulverizer purified starch acetic ester (DS 1) of cooled with liquid nitrogen, particle size dispersion: Coulter LS-130
| Through (%) | Charging TA133Particle size (μ m) | The liquid nitrogen aeropulverizerParticle size (μ m) |
| 10 | 26.2 | 4.6 |
| 25 | 56.9 | 9.6 |
| 50 | 89.9 | 18.9 |
| 75 | 133 | 40.9 |
| 90 | 186 | 108 |
In these were refining, starch acetate was different with the mineral color effect; Remainder comprises thicker component.
Claims (17)
1. method for preparing raw material; Said raw material is suitable for as fibroreticulate weighting agent or coating pigment; The charging that will comprise polysaccharide base organic polymer according to said method is refined to required particle size, it is characterized in that cooling off said charging, and said making with extra care in spraying refiner carried out; Cooling is fed at least-50 ℃, and is refining in spraying refiner then.
2. the method for claim 1 is characterized in that cooling is fed at least-100 ℃, and is refining in spraying refiner then.
3. the method for claim 1 is characterized in that cooling is fed at least-120 ℃, and is refining in spraying refiner then.
4. the method for claim 1 is characterized in that cooling is fed at least-150 ℃, and is refining in spraying refiner then.
5. each method in the claim 1 to 4 is characterized in that cooling is used to spray the purified processed gas separately.
6. the method for claim 5 is characterized in that processed gas is cooled to the temperature corresponding to feeding temperature.
7. each method in the claim 1 to 4 is characterized in that said charging includes organic polymer, and its second-order transition temperature is at least+60 ℃.
8. each method in the claim 1 to 4 is characterized in that said charging includes organic polymer, and its second-order transition temperature is at least+80 ℃.
9. each method in the claim 1 to 4 is characterized in that said charging includes organic polymer, and its second-order transition temperature is at least+100 ℃.
10. each method in the claim 1 to 4 is characterized in that said charging includes organic polymer, and its second-order transition temperature is+150 to+165 ℃.
11. each method in the claim 1 to 4 is characterized in that using the organic polymer raw material, is no more than the second-order transition temperature of this raw material in the treating process.
12. each method in the claim 1 to 4 is characterized in that said organic polymer raw material and raw mineral materials refining together.
13. each method in the claim 1 to 4 is characterized in that the starch-containing verivate of said organic polymer raw material packet, this starch derivative is starch ester, starch ethers, starch ester/ether or its mixture.
14. each method in the claim 1 to 4; It is characterized in that having prepared a kind of product; Said product comprises the starch acetate that substitution value is 1-3; And this product comprises other pigment of 0-80% weight, and said other pigment are needed for the preparation fibrous reticulum, and passed through refining with starch acetate.
15. one kind is used to be coated with and fill the fibroreticulate pigment that comprises paper or cardboard; It is characterized in that said pigment includes organic polymer; This organic polymer surface tissue has been made into porous, and said porousness is through product is sprayed refining obtaining as-50 to-195 ℃ charging.
16. the pigment of claim 15 is characterized in that the diameter of 75% in all granules of pigments is the twice of all granules of pigments mean diameters to the maximum.
17. according to the purposes of the product of each described method preparation among the claim 1-14, perhaps correspondingly, the purposes of claim 15 or 16 pigment, said purposes is as the purposes that is used for the pigment or the weighting agent of offset paper or ink jetting paper.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20050833 | 2005-08-17 | ||
| FI20050833A FI120625B (en) | 2005-08-17 | 2005-08-17 | Starch based fiber web filler and coating pigment composition and process for its manufacture |
| PCT/FI2006/000281 WO2007020327A1 (en) | 2005-08-17 | 2006-08-17 | Starch-based filler and coating pigment composition for fibre webs and method for the manufacture thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101305032A CN101305032A (en) | 2008-11-12 |
| CN101305032B true CN101305032B (en) | 2012-06-27 |
Family
ID=34896292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006800380983A Expired - Fee Related CN101305032B (en) | 2005-08-17 | 2006-08-17 | Starch-based filler and coating pigment composition for fibre webs and method for the manufacture thereof |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8597432B2 (en) |
| EP (1) | EP1915416A4 (en) |
| JP (1) | JP5134538B2 (en) |
| CN (1) | CN101305032B (en) |
| FI (1) | FI120625B (en) |
| WO (1) | WO2007020327A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9220297B2 (en) * | 2009-08-07 | 2015-12-29 | R. J. Reynolds Tobacco Company | Materials, equipment, and methods for manufacturing cigarettes |
| FI20125569L (en) | 2012-05-28 | 2013-11-29 | Nordkalk Oy Ab | Preparation and use of a composite structure containing precipitated carbonate |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4415124A (en) * | 1980-10-08 | 1983-11-15 | Henkel Kommanditgesellschaft Auf Aktien | Method for the production of micropowders from cellulose ethers or cellulose |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3319895A (en) * | 1965-05-26 | 1967-05-16 | Cabot Corp | Elastomer grinding |
| ZA714498B (en) * | 1970-07-30 | 1972-03-29 | Cabot Corp | Paper coating compositions and paper coated therewith |
| DE2410789C2 (en) * | 1974-03-07 | 1980-08-07 | Hoechst Ag, 6000 Frankfurt | Process for cold grinding of cellulose derivatives |
| GB1481304A (en) * | 1974-09-05 | 1977-07-27 | Boc International Ltd | Powder forming |
| US4102503A (en) * | 1975-04-16 | 1978-07-25 | Linde Aktiengesellschaft | Method of and apparatus for the low-temperature milling of materials |
| JPH0697962B2 (en) * | 1985-06-28 | 1994-12-07 | 花王株式会社 | Method for producing highly oil-absorbing porous powder |
| DE3833830A1 (en) * | 1988-10-05 | 1990-04-12 | Messer Griesheim Gmbh | METHOD AND DEVICE FOR COLD GRINDING |
| JPH0832997B2 (en) * | 1991-09-20 | 1996-03-29 | 日清紡績株式会社 | Coated paper using cellulose fine powder |
| JPH11334199A (en) * | 1998-05-26 | 1999-12-07 | Mitsubishi Paper Mills Ltd | Ink jet recording sheet |
| US20020037395A1 (en) * | 2000-07-21 | 2002-03-28 | Qiping Zhong | Ink jet recording medium |
| FI118179B (en) * | 2003-10-02 | 2007-08-15 | Valtion Teknillinen | Pigments and fillers and process for their preparation |
| US20060008498A1 (en) * | 2004-07-12 | 2006-01-12 | Chen Tzer-Fen D | Nano-particle production |
| JP2009500163A (en) * | 2005-07-07 | 2009-01-08 | ナノセラピューティクス・インコーポレイテッド | Method for milling and preparing powder and composition obtained thereby |
-
2005
- 2005-08-17 FI FI20050833A patent/FI120625B/en not_active IP Right Cessation
-
2006
- 2006-08-17 US US11/990,444 patent/US8597432B2/en not_active Expired - Fee Related
- 2006-08-17 EP EP06778503A patent/EP1915416A4/en not_active Withdrawn
- 2006-08-17 CN CN2006800380983A patent/CN101305032B/en not_active Expired - Fee Related
- 2006-08-17 WO PCT/FI2006/000281 patent/WO2007020327A1/en active Application Filing
- 2006-08-17 JP JP2008526518A patent/JP5134538B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4415124A (en) * | 1980-10-08 | 1983-11-15 | Henkel Kommanditgesellschaft Auf Aktien | Method for the production of micropowders from cellulose ethers or cellulose |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平11-334199A 1999.12.07 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101305032A (en) | 2008-11-12 |
| US20090255441A1 (en) | 2009-10-15 |
| EP1915416A4 (en) | 2012-02-22 |
| US8597432B2 (en) | 2013-12-03 |
| EP1915416A1 (en) | 2008-04-30 |
| FI120625B (en) | 2009-12-31 |
| FI20050833A (en) | 2007-02-18 |
| WO2007020327A1 (en) | 2007-02-22 |
| JP5134538B2 (en) | 2013-01-30 |
| FI20050833A0 (en) | 2005-08-17 |
| JP2009504867A (en) | 2009-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101724177B1 (en) | Process for preparing stable dispersions of starch particles | |
| US9045861B2 (en) | Manufacture and use of a composite structure containing precipitated carbonate | |
| EP1303667B1 (en) | Use of dispersions of crosslinked cationic starch in papermaking | |
| EP2798012B1 (en) | Use of precipitated carbonate in the manufacture of a fibre product | |
| EP1303670B1 (en) | Use of starch dispersions as binder in coating compositions and process for preparing the starch dispersions | |
| KR101516901B1 (en) | Filler composition and method of producing composite materials | |
| Kamthai et al. | Mechanical and barrier properties of spray dried carboxymethyl cellulose (CMC) film from bleached bagasse pulp | |
| CN101305032B (en) | Starch-based filler and coating pigment composition for fibre webs and method for the manufacture thereof | |
| CA2949195C (en) | Composition of precipitated calcium carbonate, method of producing the same and the uses thereof | |
| EP1685185B1 (en) | Method of manufacturing a starch based pigment or filler | |
| EP1546207B1 (en) | Polymer solution and dispersion and a process for the preparation thereof | |
| JP6466495B2 (en) | Sustainable adsorptive polymer | |
| CN109072553A (en) | Drying/transport and release microfibrillated cellulose | |
| JP2018511712A (en) | Coating composition comprising hydrolyzed wheat protein | |
| JPH10226993A (en) | Paper coating solution | |
| WO2019121797A1 (en) | Surface-reacted calcium carbonate as extrusion aid | |
| Ren et al. | Isolation and characterization of microcrystalline cellulose from distillers grains | |
| HU191826B (en) | Starch-based water-dilutable adhesive |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120627 Termination date: 20140817 |
|
| EXPY | Termination of patent right or utility model |